Transmission device for a door lock

摘要

A transmission device for a door lock has a solenoid switch, a driven device and a linkage assembly. The solenoid switch has a solenoid core, a guide tube, a sleeve and a clutch cap. The guide tube is mounted in the solenoid core and has a connecting end. The connecting end is formed on one end of the guide tube and protrudes out of the solenoid core. The sleeve is mounted slidably in the solenoid core and around the guide tube and has at least one engaging tab formed on and protruding from the sleeve at one end adjacent to the connecting end of the guide tube. The clutch cap is mounted around the connecting end of the guide tube and has at least one engaging notch selectively and detachably engaging respectively with a corresponding engaging tab on the sleeve.